Now showing items 57587-57606 of 63030

    • T helper 1/T helper 2 cytokine imbalance in respiratory syncytial virus infection is associated with increased endogenous plasma cortisol 

      Pinto Muñoz, Ricardo; Arredondo, Sonia M.; Bono Merino, María Rosa; Gaggero Brillouet, Aldo; Díaz, Patricia V. (AMER ACAD PEDIATRICS, 2006-05)
      OBJECTIVE. Cellular immunity has classically been described as the defense mechanism for viral infections. The development of cellular or humoral immune responses will depend on a repertoire of cytokines produced by numerous ...
    • T helper type 17 cells contribute to anti-tumour immunity and promote the recruitment of T helper type 1 cells to the tumour 

      Nuñez, Sarah; Saez, Juan José; Fernández, Dominique; Flores Santibañez, Felipe; Álvarez, Karla; Tejón, Gabriela; Ruiz, Paulina; Maldonado, Paula; Hidalgo, Yessia; Manriquez, Valeria; Bono Merino, María Rosa; Rosemblatt Silber, Mario César; Sauma Mahaluf, Daniela (Blackwell Publishing, 2013)
      T helper type 17 (Th17) lymphocytes are found in high frequency in tumour-burdened animals and cancer patients. These lymphocytes, characterized by the production of interleukin-17 and other pro-inflammatory cytokines, ...
    • T lymphocytes activated by persistent viral infection differentially modify the expression of metalloproteinases and their endogenous inhibitors, TIMPs, in human astrocytes: Relevance to HTLV-I-induced neurological disease 

      Giraudon, Pascale; Szymocha, Raphaël; Buart, Stéphanie; Bernard, Arlette; Cartier Rovirosa, Luis; Belin, Marie Françoise; Akaoka, Hideo (American Association of Immunologists, 2000)
      Activation of T lymphocytes by human pathogens is a key step in the development of immune-mediated neurologic diseases. Because of their ability to invade the CNS and their increased secretion of proinflammatory cytokines, ...
    • T&M Sales 

      Martínez G., Rodrigo; Baeza Diaz, Rodrigo (Universidad de Chile, 2016-07)
      Nuestro Business Plan establece la creación de T&M Sales, una empresa comercializadora de productos tecnológicos, principalmente Wearables, en el segmento de las SmartBand o Pulseras Inteligentes. El principal producto ...
    • T-BAR: Implementando el modelo de negocios de Teahouse en el mercado chileno 

      Martin Alarcón, Sergio Leonardo (Universidad de Chile, 2013)
      En este manuscrito se analiza y evalúa el establecimiento y operación de un Teahouse de estilo contemporáneo en Santiago de Chile emulando el modelo de negocios de la cadena de Teahouse Australiana "T2" (www.t2tea.com). El ...
    • t-butyl-4-hydroxyanisole as an inhibitor of tumor cell respiration 

      Fones, Elizabeth; Amigo, Hannelore; Gallegos, Kimie; Guerrero, Anibal; Ferreira, Jorge (1989)
      The effect of t-butyl-4-hydroxyanisole (BHA), a widely used food antioxidant additive, on the culture growth, oxygen consumption, and redox state of some electron carriers of intact TA3 and 786A ascites tumor cells has ...
    • t-Butyl-4-hydroxyanisole, a novel respiratory chain inhibitor. Effects on Trypanosoma cruzi epimastigotes 

      Aldunate, J.; Ferreira, Jorge; Letelier Muñoz, María Eugenia; Repetto, Y.; Morello, A. (1986)
      t-Butyl-4-hydroxyanisole, an antioxidant food additive, inhibited the growth of Trypanosoma cruzi by almost 100% at 0.5 mM concentration. This compound inhibited 70% of oxygen consumption of epimastigotes. The redox level ...
    • T-cell receptor variable alpha (TCRAV) polymorphisms in European, Chinese, South American, AfroCaribbean, and Gambian populations 

      Ibberson, Mark R.; Copier, John P.; Llop Romero, Elena; Navarrete, Cristina; Hill, Adrian V.S.; Cruickshank, J. Kennedy; So, Alex K.L. (1998)
      Interactions involving the T-cell receptor (TCR) and major histocompatibility complex (MHC) are fundamental to the generation of a specific immune response. The study of interpopulation differences in TCR genes may identify ...
    • T-kininogen can either induce or inhibit proliferation in Balb/c 3T3 fibroblasts, depending on the route of administration 

      Aravena, Mauricio; Pérez, C.; Pérez, V.; Acuña Castillo, Claudio; Gómez, Christian; Leiva Salcedo, Elías; Nishimura, Sumiyo; Sabaj, B.; Walter, Robin Ann (ELSEVIER SCI IRELAND LTD, 2005-03)
      T-kininogen (T-KG) is a precursor of T-kinin, the most abundant kinin in rat serum, and also acts as a strong and specific cysteine proteinase inhibitor. Its expression is strongly induced during aging in rats, and expression ...
    • T-kininogen induces endothelial cell proliferation 

      Pérez, Viviana; Leiva Salcedo, Elías; Acuña Castillo, Claudio; Aravena, Mauricio; Gómez, Christian; Sabaj Diez, Valeria; Colombo, Alicia; Nishimura, Sumiyo; Pérez Núñez, Claudio; Walter, Robin Ann; Sierra, Felipe (ELSEVIER, 2006-03)
      Basal proliferation of endothelial cells increases with age, and this might play a role in the etiology of age-related vascular diseases, as well as angiogenesis. Serum kininogen levels increase during aging in rats and ...
    • T-kininogen inhibits kinin-mediated activation of ERK in endothelial cells 

      Leiva-Salcedo, Elias; Perez, Viviana; Acuña Castillo, Claudio; Walter, Robin Ann; Sierra, Felipe (Society of Biology of Chile, 2002)
      Serum levels of T-kininogen increase dramatically as rats approach the end of their lifespan. Stable expression of the protein in Balb/c 3T3 fibroblasts leads to a dramatic inhibition of cell proliferation, as well as ...
    • T-kininogen, a cystatin-like molecule, inhibits ERK-dependent lymphocyte proliferation 

      Acuña Castillo, Claudio; Aravena, Mauricio; Leiva Salcedo, Elías; Pérez, Viviana; Gómez, Christian; Sabaj Diez, Valeria; Nishimura, Sumiyo; Pérez Núñez, Claudio; Colombo, Alicia; Walter, Robin Ann; Sierra, Felipe (ELSEVIER, 2005-12)
      Plasma levels of kininogens increase with age in both rats and humans. Kininogens are inhibitors of cysteine proteinases, and filarial cysteine proteinase inhibitors (cystatins) reduce the proliferation of T cells. We ...
    • T-kininogen: A biomarker of aging in fisher 344 rats with possible implications for the immune response 

      Acuña Castillo, Claudio; Leiva-Salcedo, Elias; Gómez, Christian R.; Pérez, Viviana; Li, Min; Torres, Claudio; Walter, Robin Ann; Murasko, Donna M.; Sierra, Felipe (Gerontological Society of America, 2006)
      T-kininogen (T-KG) is a reliable biomarker of aging in male Sprague-Dawley rats. Here we confirm, in a longitudinal study, a similar behavior in Fisher 344 rats of both sexes. In males, the increase in serum levels of T-KG ...
    • T-lymphocyte phenotype and function triggered by Aggregatibacter actinomycetemcomitans is serotype-dependent 

      Díaz-Zúñiga, J.; Melgar-Rodríguez, S.; Alvarez, C.; Monasterio, G.; Benítez, A.; Ciuchi, P.; Díaz, C.; Mardones, J.; Escobar, A.; Sanz, M.; Vernal, R. (Blackwell Munksgaard, 2015)
      & Sons Ltd. Background and Objective: Based on lipopolysaccharide (LPS) antigenicity, different Aggregatibacter actinomycetemcomitans serotypes have been described. Serotype b strains have demonstrated a stronger capacity ...
    • t-perfection is always strong for claw-free graphs 

      Bruhn, Henning; Stein, Maya (SIAM PUBLICATIONS, 2010)
      A connected graph G is called t-perfect if its stable set polytope is determined by the non-negativity, edge and odd-cycle inequalities. More- over, G is called strongly t-perfect if this system is totally dual inte- gral. ...
    • T-periodic solutions for a second order system with singular nonlinearity 

      Pino Manresa, Manuel del; Manásevich Tolosa, Raúl; Aftabizadeh, A. R. (1995)
      We consider a system of the form u’' + au’ = Hv(u, v)-h(t) v’' + bv’ = Hu(u, v)-k(t), where h, k are locally integrable and T-periodic, and H is a C1 function defined on (0,∞)x(0,∞), for which a good model is given by H(u, ...
    • T. cruzi oligoC-tesT: A simplified and standardized polymerase chain reaction format for diagnosis of Chagas disease 

      Deborggraeve, Stijn; Coronado, Ximena; Solari Illescas, Aldo; Zulantay Alfaro, Inés; Apt Baruch, Werner; Mertens, Pascal; Laurent, Thierry; Leclipteux, Thierry; Stessens, Tim; Dujardin, Jean Claude; Herdewijn, Piet; Büscher, Philippe (2009)
      Background: PCR has evolved into one of the most promising tools for T. cruzi detection in the diagnosis and control of Chagas disease. However, general use of the technique is hampered by its complexity and the lack of ...
    • T.C.A : centro de tratamiento de trastornos de la conducta alimentaria 

      Ahumada Donoso, Vanessa (Universidad de Chile, 2009)
    • T3 TOXICOSIS IN AN IODINE-DEFICIENT AREA 

      Hollander, C. S.; Mitsuma, T.; Shenkman, L.; Stevenson, C.; Pineda, G.; Silva, E. (1972)
      In contrast to experience in New York where the frequency of triiodothyronine (T3) toxicosis among hyperthyroid patients is 4%, 56 (12·5%) of 449 patients in Chile, an area of iodine deficiency, were hyperthyroid by clinical ...
    • Tabaquismo activo y cancer pulmonar: Determinación de fracciones atribuibles por sexo 

      Erazo Bahamondes, Marcia; Amigo Cartagena, Hugo; Oyarzún Gómez, Manuel; Peruga U., Armando (SOC MEDICA SANTIAGO, 2008-10)
      Background: The association between lung cancer and smoking is well documented. However there is less information about the estimation of its attributable fraction and population burden. Aim: To estimate the attributable ...